<template>
    <div>
        <h2>图表4</h2>
        <div class="chart" ref="chartDom">

        </div>
    </div>
</template>
<script lang="ts" setup>
import { ref,onMounted } from 'vue'
import * as echarts from 'echarts';
const chartDom = ref()
onMounted(()=>{



let myChart= echarts.init(chartDom.value)

var option;

option = {
  title: {
    text: 'Referer of a Website',
    subtext: 'Fake Data',
    left: 'center'
  },
  tooltip: {
    trigger: 'item'
  },
  legend: {
    orient: 'vertical',
    left: 'left'
  },
  series: [
    {
      name: 'Access From',
      type: 'pie',
      radius: '50%',
      data: [
        { value: 1048, name: 'Search Engine' },
        { value: 735, name: 'Direct' },
        { value: 580, name: 'Email' },
        { value: 484, name: 'Union Ads' },
        { value: 300, name: 'Video Ads' }
      ],
      emphasis: {
        itemStyle: {
          shadowBlur: 10,
          shadowOffsetX: 0,
          shadowColor: 'rgba(0, 0, 0, 0.5)'
        }
      }
    }
  ]
};
option && myChart.setOption(option);
})
</script>
<style scoped>
h2 {
    /* 48像素 */
    height: 0.6rem;
    color: #fff;
    line-height: 0.6rem;
    text-align: center;
    font-size: 0.25rem;

}

.chart {
    /* 高度360 */
    height: 4.5rem;
    background-color: #fff;
}
</style>